1.1.3 Ensure nodev option set on /tmp partition

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The nodev mount option specifies that the filesystem cannot contain special devices.


Since the /tmp filesystem is not intended to support devices, set this option to ensure that users cannot attempt to create block or character special devices in /tmp .


Edit the /etc/fstab file OR the /etc/systemd/system/local-fs.target.wants/tmp.mount file:
If /etc/fstab is used to mount /tmp:
Edit the /etc/fstab file and add nodev to the fourth field (mounting options) for the /tmp partition. See the fstab(5) manual page for more information.
Run the following command to remount /tmp:

# mount -o remount,nodev /tmp

OR If systemd is used to mount /tmp:
Edit /etc/systemd/system/local-fs.target.wants/tmp.mount to add nodev to the /tmp mount options:


Run the following command to restart the systemd daemon:

# systemctl daemon-reload

Run the following command to restart tmp.mount

# systemctl restart tmp.mount

See Also